pow I. \ˈpō, ˈpau̇\noun (-s) Etymology: alteration of poll (I) dialect: head, poll < blessings on your frosty pow — Robert Burns > II. \ˈpau̇\noun (-s) Etymology: imitative : a sound of a blow or explosion < the pow of an ax on a tree > < heard the pow of a blowout — Ethyl News > — often used interjectionally